Fitness + to chromecast

So I have a set up with a treadmill and projector to project my fitness plus workouts to. Was disappointed before not being able to mirror workouts to chromecast but everything else worked fine. Was hoping with the new 14.5 update this would be problem solved. I don’t think chromecast supports airplay 2. Without buying Apple TV or a tv that supports airplay 2 is there any other way I can stream the workouts? Many thanks